41.6650’ N, 70.1833’ W

South Yarmouth, MA

60°
H -°
L 56°
N
8mph
Low tide
1:32 am

Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, September 18, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide (tomorrow) : in 2h 31m at 1:32 am (0.5 ft)
Next high tide (tomorrow) : 7:51 am (2.3 ft)
Sunset today : 6:45 pm
Sunrise tomorrow : 6:24 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Nov 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:032.35:052.610:530.711:360.46:124:36Third Quarter1Wed
2Thu5:552.35:592.611:460.76:134:35Third Quarter2Thu
3Fri6:482.36:552.612:280.412:420.76:144:33Third Quarter3Fri
4Sat7:412.47:522.71:210.41:390.66:164:32Third Quarter4Sat
5Sun8:322.68:482.72:130.32:350.46:174:31Waning Crescent5Sun
6Mon9:212.89:432.83:040.23:310.26:184:30Waning Crescent6Mon
7Tue10:093.010:362.93:540.14:240.06:194:29Waning Crescent7Tue
8Wed10:563.211:263.04:430.05:15-0.26:204:28New Moon8Wed
9Thu11:423.45:31-0.16:05-0.46:224:27New Moon9Thu
10Fri12:163.112:293.56:19-0.16:56-0.56:234:26New Moon10Fri
11Sat1:083.01:193.57:08-0.17:47-0.56:244:24Waxing Crescent11Sat
12Sun2:013.02:123.57:59-0.18:40-0.46:254:24Waxing Crescent12Sun
13Mon2:562.93:063.48:520.09:35-0.36:274:23Waxing Crescent13Mon
14Tue3:532.84:033.29:470.110:32-0.26:284:22Waxing Crescent14Tue
15Wed4:532.75:053.010:470.311:330.06:294:21First Quarter15Wed
16Thu5:582.66:112.911:510.46:304:20First Quarter16Thu
17Fri7:032.67:182.812:350.112:580.46:314:19First Quarter17Fri
18Sat8:052.78:232.71:370.22:040.46:334:18Waxing Gibbous18Sat
19Sun9:022.79:252.62:350.33:070.46:344:17Waxing Gibbous19Sun
20Mon9:542.810:202.63:300.34:040.36:354:17Waxing Gibbous20Mon
21Tue10:392.811:082.64:180.34:540.26:364:16Waxing Gibbous21Tue
22Wed11:192.911:512.65:010.45:370.16:374:15Full Moon22Wed
23Thu11:562.95:410.46:170.16:394:15Full Moon23Thu
24Fri12:302.612:322.96:190.46:550.16:404:14Full Moon24Fri
25Sat1:092.61:092.96:570.47:330.16:414:14Full Moon25Sat
26Sun1:492.51:472.97:350.58:120.16:424:13Waning Gibbous26Sun
27Mon2:282.52:272.88:150.58:520.26:434:13Waning Gibbous27Mon
28Tue3:092.43:072.88:560.59:330.26:444:12Waning Gibbous28Tue
29Wed3:502.43:502.79:380.610:160.26:454:12Waning Gibbous29Wed
30Thu4:342.44:352.710:240.611:020.36:464:11Waning Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About South Yarmouth, MA Tides

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Is this week a spring tide or neap tide in South Yarmouth, MA?

South Yarmouth, MA is currently in a neap phase. Tonight's moon is 48% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are South Yarmouth, MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for South Yarmouth, MA?

Tide predictions for South Yarmouth, MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for South Yarmouth, MA?

Tide data for South Yarmouth, MA is sourced from NOAA Station #8447504. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447504.

What is the moon phase in South Yarmouth, MA tonight?

Tonight the moon over South Yarmouth, MA is First Quarter (48% illuminated). This places South Yarmouth, MA in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA